Link between pot, psychosis goes both ways in kids

Discussion in 'Marijuana News' started by Bunny Wailer, Dec 26, 2012.

  1. Link between pot, psychosis goes both ways in kids | Reuters

    (Reuters Health) - Marijuana (cannabis) use may be linked to the development of psychotic symptoms in teens - but the reverse could also be true: psychosis in adolescents may be linked to later pot use, according to a new Dutch study.

    "We have focused mainly on temporal order; is it the chicken or the egg? As the study shows, it is a bidirectional relationship," wrote the study's lead author Merel Griffith-Lendering, a doctoral candidate at Leiden University in The Netherlands, in an email to Reuters Health.

    Previous research established links between marijuana and psychosis, but scientists questioned whether pot use increased the risk of mental illness, or whether people were using pot to ease their psychotic symptoms, such as hallucinations and delusions.

    "What is interesting in this study is that both processes are going on at the same time," said Dr. Gregory Seeger, medical director for addiction services at Rochester General Hospital in upstate New York.

    He told Reuters Health that researchers have been especially concerned about what tetrahydrocannabinol (THC), the active property in pot, could do to a teenager's growing brain.

    "That's a very vulnerable period of time for brain development," and individuals with a family history of schizophrenia and psychosis seem to be more sensitive to the toxic effects of THC, he said.

    A 2010 study of 3,800 Australian teenagers found that those who used marijuana were twice as likely to develop psychosis compared to teens who never smoked pot (see Reuters Health article of March 1, 2010 here:).

    But that study also found that those who suffered from hallucinations and delusions when they were younger were also more likely to use pot early on.

    CHICKEN v. EGG

    For the new study, published in the journal Addiction, the researchers wanted to see which came first: pot or psychosis.

    Griffith-Lendering and her colleagues used information on 2,120 Dutch teenagers, who were surveyed about their pot use when they were about 14, 16 and 19 years old.

    The teens also took psychosis vulnerability tests that asked - among other things - about their ability to concentrate, their feelings of loneliness and whether they see things other people don't.

    Overall, the researchers found 940 teens, or about 44 percent, reported smoking pot, and there was a bidirectional link between pot use and psychosis.

    For example, using pot at 16 years old was linked to psychotic symptoms three years later, and psychotic symptoms at age 16 were linked to pot use at age 19.

    This was true even when the researchers accounted for mental illness in the kids' families, alcohol use and tobacco use.

    Griffith-Lendering said she could not say how much more likely young pot users were to exhibit psychotic symptoms later on.

    Also, the new study cannot prove one causes the other. Genetics may also explain the link between pot use and psychosis, said Griffith-Lendering.

    "We can say for some people that cannabis comes first and psychosis comes second, but for some people they have some (undiagnosed) psychosis (and) perhaps cannabis makes them feel better," said Dr. Marta Di Forti, of King's College, London, who was not involved with the new research.

    Di Forti, who has studied the link between pot and psychosis, told Reuters Health she considers pot a risk factor for psychosis - not a cause.

    Seeger, who was also not involved with the new study, said that there needs to be more public awareness of the connection.

    "I think the marijuana is not a harmless substance. Especially for teenagers, there should be more of a public health message out there that marijuana has a public health risk," he said.

    Griffith-Lendering agrees.

    "Given the severity and impact of psychotic disorders, prevention programs should take this information into consideration," she said.
     
  2. Even this does not justify the incarceration of 800,000 persons yearly and introducing them to the disadvantages throughout life just from being arrested. It does underline the need for any legalization law to be age limited and probably 21 rather than 18.(ducking as rocks fly in from the bleachers)
     
  3. #3 Bunny Wailer, Dec 26, 2012
    Last edited by a moderator: Dec 27, 2012
    So people can smoke weed and then get psychosis. People can also have psychosis and then smoke weed. Doesn't that mean that there isn't a relation?

    I can have the flu, and then smoke weed a year later. andI'm sure someone here smoked weed before they ever got the flu. Using the logic in the bolded part above, wouldn't that mean marijuana and the flu share a link?

    Or did I miss something in the article?

    I also like how the title is stated as fact, then the first sentence uses words like "may" and "could"
     
  4. Well I think he means that there is a relation of people who are off are more likely to be smoking weed before or and after there brain takes a turn. Either way , the ganja spreads its love to everyone, and I dont think herb cAuses psychotic problems, peace.
     
  5. The only reason I had psychotic episodes this year was because of withdrawal from antipsychotic drugs
     
  6. And those who use cannabis survive better- so maybe on an instinctual level they know what they are doing! :eek:

    Study: Marijuana Linked to Lower Mortality Rate for Patients with Psychotic Disorders
    (news – 2012) Study: Marijuana Linked to Lower Mortality Rate for Patients with Psychotic Disorders | Alternet

    [FONT=&quot]Medical use of cannabis. Cannabidiol: A new light for schizophrenia? (abst - 2012)[/FONT][FONT=&quot] Medical use of cannabis. Cannabidiol: A new l... [Drug Test Anal. 2012] - PubMed - NCBI

    [/FONT] Cannabidiol enhances anandamide signaling and alleviates psychotic symptoms of schizophrenia. (full – 2012) Cannabidiol enhances anandamide signaling and alleviates psychotic symptoms of schizophrenia

    Marijuana Use Associated With 'Superior' Cognitive Performance In Schizophrenic Patients, Study Says (news – 2011) Marijuana Use Associated With 'Superior' Cognitive Performance In Schizophrenic Patients, Study Says
     
  7. "Also, the new study cannot prove one causes the other."

    So what's the fucking point of publicizing this study in a news article???

    Suck a dick, mainstream media. Legalization is inevitable at this point. Stop fighting it.
     
  8. Lol, what? :eek::confused: Time travel?!?!?!?!:smoking:
     

  9. "Griffith-Lendering and her colleagues used information on 2,120 Dutch teenagers, who were surveyed about their pot use when they were about 14, 16 and 19 years old."
     

  10. How can psychotic symptoms at age 16 be linked to pot use at age 19? Really? Play on words? WTF!:confused:
     

  11. Well without further clarification from the article assumptions have to be made.

    My assumption is that the ratio of pot smokers vs. non-pot smokers is higher in people who had psychotic symptoms at age 16, than the ratio of those who didn't have psychotic symptoms.

    Don't take my devil's advocate too seriously, I know they made jumps in their findings to put down weed.
     

  12. Aye, ya never learned the bit about not to ass-u-me, get it? :p
     
  13. haha yes i have...the flaw with my assumption:

    Wouldn't they have to know how much more likely for there to be a link? Wouldn't the study, which they claim shows a link, have a number of how different the psychotic symptom vs. no psychotic symptoms ratios are?
     
  14. And therein lies the problem, too many people make assumptions to fill in the gaps. Broken down and like all biased studies, it will be found to be full of logical fallacies.

    It's a common scare tactic.
     
  15. the other problem is people just read this crap and take it as truth...without any supporting data other than word of mouth (which they even said they could not say how much)
     
  16. #16 Storm Crow, Jan 2, 2013
    Last edited by a moderator: Jan 2, 2013
    So, Purple, it is up to you and me to comment in the news and refute some of the BS! (The rest of you reading this might consider commenting, too! :cool:)

    Today, I got a person who was against cannabis, to reconsider his position!

    "Your replies make me further think about this and make this an educational debate."

    Pro-marijuana campaign looks ahead after 2012 victories - Yahoo! News

    We ended up wishing each other a Happy New Year. Did I convince him? Who knows :confused_2:, but his mind is now open to the possibility that cannabis IS medicine! That was enough for today! :D Tomorrow, he may see another of my comments and look into it further! :yay:

    Just do a search in the online news on "Marijuana" or "Medical Marijuana". FYI- at YahooNews, "cannabis" is considered a "bad word" by their censor - pot, marijuana, grass, weed and hemp are all OK! :cool:



    Granny :wave:
     

  17. I think it's easier to convince them it's medicine than it is to convince them it is a safe alternative to alcohol.
     

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